Comment on: The class of CUB models: statistical foundations, inferential issues and empirical evidence
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We congratulate with the authors for providing a very clear and comprehensive overview about Combination of Uniform and Binomial (CUB) models for the analysis of ordinal responses, in particular when these responses result from the formulation of ratings or preferences. We can testify that these models have successfully represented the main research interest of Professor Piccolo across the last 15 years at least; on this research field he has been able to involve many young researchers.
In the following, we provide comments on some relevant aspects of CUB models and on some topics that may represent certain possible developments, although we acknowledge the presence in the literature of a large number of already available extensions in several directions, which are well documented in the proposed article.
The heart of CUB models is the conceptualization of the selection process of a response category made by an individual among the possible item responses. An explanation of this...
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